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EN 1.4109 Stainless Steel vs. AISI 316N Stainless Steel

Both EN 1.4109 stainless steel and AISI 316N stainless steel are iron alloys. They have 83% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4109 stainless steel and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 19
9.0 to 39
Fatigue Strength, MPa 270
230 to 450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 480
420 to 690
Tensile Strength: Ultimate (UTS), MPa 770
620 to 1160
Tensile Strength: Yield (Proof), MPa 420
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 820
940
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
19
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.2
3.9
Embodied Energy, MJ/kg 30
53
Embodied Water, L/kg 110
150

Common Calculations

PREN (Pitting Resistance) 17
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 460
180 to 1880
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
22 to 41
Strength to Weight: Bending, points 24
20 to 31
Thermal Diffusivity, mm2/s 8.1
4.1
Thermal Shock Resistance, points 28
14 to 26

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.080
Chromium (Cr), % 14 to 16
16 to 18
Iron (Fe), % 80.7 to 85
61.9 to 71.9
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.4 to 0.8
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0
0.1 to 0.16
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.7
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030